Biology, 17.12.2021 01:00 carrrlareyes
A particular peach tree produces peaches that are more resistant to disease than other peaches. What method would reproduce these exact peaches?.
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Biology, 22.06.2019 08:50
What does the positioning of transcription factors determine?
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Biology, 22.06.2019 13:00
Astudy by solloch and et. al., in 2017, gives the map above which shows the frequency of alleles with a ccr5-delta32 mutations over 87 different countries. this mutation deletes the presence of a co-receptor (ccr5) on the outside of human t-cells (lymphocytes). some viruses, such as the one responsible for the black death and human immunodeficiency virus (hiv), require this receptor for attachment to host cells during the infection process. the black death was an epidemic that passed over northern europe during the 14th century killing nearly 60% of europeans. according to this information, which explanation best explains why northern europeans show a greater immunity for hiv than some other parts of the world?
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Biology, 22.06.2019 19:00
The assembly called for a "bill of rights" that would list u.s. citizens'
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Biology, 22.06.2019 21:00
Brass gets discoloured in air because of the presence of which of the following gases in air? a. oxygen b. hydrogen sulphide c. carbon dioxide d. nitrogen
Answers: 2
A particular peach tree produces peaches that are more resistant to disease than other peaches. What...
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